Screen Magnifier Dimensions:The 22 inch laptop & phone screen amplifier total Length 1941in (49.3cm), total height 14.3in (36.5 cm). the screen Length 19.3in (49cm), height 10.28 in (26.1cm); Materials:The Screen Magnifying glass uses high-definition optical lens material, the wooden frame bracket is environmentally friendly, and can adjust multiple viewing angles. It can enjoy 3D vision away from the screen, effectively preventing mobile phone radiation from harming the human body; General screen magnifier for laptops : This laptop screen magnifier uses high-definition zoom optical technology, which can be applied to laptop/tablet/mobile phone screen magnifiers. The screen magnifier uses high-definition optical technology to magnify 3-5 times on the phone screen. Wide Application:The screen magnifier can be applied to 14/15/16/17/18/20/21Inch laptop/tablet/mobile. There are a total of 6 branch points on the screen nagnifier, and the 4 pivot points can be rotated over 180 degrees, which allows the product to be placed in a variety of ways, such as reading and newspapers, magnifying laptops, magnifying piano scores, etc; THE BEST CHOICE FOR GIFTS: Help protect eyes from relatively close viewing distances. The simple and stylish design makes this product the best gift choice for your family, friends, relatives, movie lovers and game playmates. The best gift for the elderly to read books or newspapers